romney leads the pack. his campaign says based on math, no other candidate can overtake him for the number of delegates needed to secure the nomination. that is their map. we'll ask carl cameron, what his map is. he is chief political correspondent. he is in boston covering the romney camp. carl carl, does that ad up? >> reporter: that is a little bit exaggerated. romney says it is not too late for him to be defeated. that is why last night was a big deal for him. they hoped to win half the states. they got six. alaska was a bit of a surprise late at night or early this morning. romney now charges forward with more than 2 1/2 times the delegates of rick santorum and four times what newt gingrich has. super tuesday was the single biggest day of available delegates. there will be no other single day on the campaign trail as large as this. romney knows, no matter how well he is succeeds he will not likely get full creditor for it. the narrative is the frontrunner will be criticized publicly all the way to conv